Driving mechanism for motor-vehicles



P. J. GARRISONL DRIVING MECHANISM FOR MOTOR VEHICLES.

APPLICATlON FILED JAN. 8. 19x9.

1, 3 l 8., 37 3 Patented Oct. 14, 1919.

2 SHEETS-SHEET I.

Qmmm fw P. J. GARRISON.

DRIVING MECHANISM FOR MDTOB VEHICLES.

APPLICATION FILED JAN. 8, I919.

1 3 l 8, 3? 3 Patented Oct. 14, 1919.

I3; 2 E a T III/II III 3-month);

rmrrnn srarns Parana orrroa PERRY J. GARRISON, or OXFORD, MICHIGAN, ASSIGNOR or ONE-HALF To WILLIAM REED, or OXFORD, MICHIGAN, I

DRIVING MECHANISM FOR MOTOR-VEHICLES.

To all whom it may concern:

Be it known that I,- PERRY J. GARRIsoN,

citizen of the United States, residing at I extends the ends of a dlvlded rear axle B.

Oxford, county of Oakland, State ofMichigan, have invented a certain new and useful Improvement in Driving Mechanism for Motor-Vehicles, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and-use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to a driving mechanism for motor vehicles :-its object being to provide a simple andinexpensive power transmission between the driving shaft of a motor and the driving wheels of the vehicle which shall be eflicient, not liable to get out of order, easy to install and quiet in action.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes may be made in the precise embodiment herein disclosed without departing from the spirit of the invention.

In the accompanying drawings :v v

Figure 1 is a plan view of the device with the cover plate removed, showing fragments of the axle and also of the clutch lever.

Fig. 2 is a vertical cross sectional View of the same.

Fig. 3 is a vertical sectional view on line 33 of Fig. 2. r

Fig. 4 isan elevation of the inclosing. case, showing the driving shaft in cross section and fragments of the clutch and reverse levers.

In the device shown no so called differential mechanism is shown but a suitable differential mechanism may be employed if desired, this feature, however, forms no part of the present invention.

Specification of Letters Iatent.

Patented oct. 14., 1919.

Application filed January 8, 1919. Serial No. 270,128.

Referring now to the letters of reference placed upon the drawings I A, denotes a chambered casing into which J ournaledaat an angle in the walls of the easing, is a rotatable disk C, provided with a plurality of apertures C,arranged in concentric circles to receive the teeth of certain driving and driven pinions hereafter more specifically described.

g D and D are pinions, mounted upon the ends of the divided axle, the teeth of which enter-the apertures C of one of the concentric rings of apertures, but respectively on opposite sides of the disk.

E, E indicate anti-friction rollers, journaled in the walls of the casing, bearing upon each side of the disk C, at a point opposite that in which the teeth of the pinions D, D enter the apertures of the disk.

Gr, denotes a hollow driving shaft actuated in the usual manner bya prime mover (not shown) H, is a pinion loosely mounted upon said shaft, the teeth of which enter one of the circular rows of apertures C in the disk C.

I, indicates a pinion also loosely mounted upon the shaft, spaced from the pinion H the teeth of which enter a concentric row of apertures in the disk to drive the latter at a different speed ratio,

J, denotes a clutch member extending transversely through a slot in the shaft Gr, between the pinions H and I, adapted to alternately clutch the respective pinions to the driving shaft through the-manual operation of a lever -K, in: turn operably connected with the member J, by a rod,L, extending through the shaft G.

,M, .is a sprocket. gear on the shaft G, connected by a driving chain N, with a sprocket gear 0, on the hollow stub shaft P, journaled in the wall of the casing A.

Q, is a pinion loosely mounted upon the shaft P, the teeth of which enter one of the circular rows of apertures in the disk C, on the underside of the latter to drive vthe disk in a reverse direction.

S, indicates a clutch member extending transversely through a slot in the shaft 'P, adapted to clutch the pinion Q, to said shaft through the manual operation of the lever l, which is in turn connected to the clutch member S, by a rod U, extending through the shaft P o Having indicated the several parts by reference letters, the construction and oper ation of the 1 driving -mechanism will be readily understood.

To operate traction or driving wheels (not shown) carried by the divided axle a forward direction, the lever K, is manually operated to shift the clutch member J, from its neutral position (shown in Fig. so

as to clutch either the pinion H, or I, to the shaft G, in accordance with thespeed required.-" The disk 0, is thus actuated and the pinions D'and D mounted upon the inner ends of the divided axle, are thereby operated, rotating the rear axle with its traction Wheels in a forward direction. lVhen'it is desired to reverse the direction taken, the vehicle, the clutch memlber J, is thrown into a neutral position, by the operation of the lever 'K'; the clutch; lever'T, is then operated to shift the clutch'member S, into engagement with thep-inion Q, thereby looking it to the shaft P. Power having now [been applied to the shaft through the driving chain connection N, with the shaft G,the disk C is rotated in a-reverse direc Ttion, thereby reversing therotation of-the rearaxle and the traction wheels mounted thereonp I V o 1;

It will be seen that by the use of this 1nvention there is no shifting of gears,that

the driving gears are always in mesh, and thatthe operation of the 7 device is both .simple andvery effective. I I

. Having'thus described myinventiomwhat 1. In adevice of the character described, an inclosing c'ase,a rotatable disk journaled in the case, having a plurality of apertures arranged in circles, a divided axle, a pinion fitted to each portion of the axle, their teeth entering the apertures in the disk, a driv- Jing shaft, a pinion loosely fitted to the driving shaft, its teeth adapted to enter the "apertures'in the disk, and means forlocking 55 whereby the disk' may beactuated.

said last named pinion to the driving shaft;

2.. In a device of the characterdescribed,

an inclosing case, a rotatable disk 1' ournahd in the case, having a plurality ofapertures arranged: in concentric circlesto receive the teethfof driving, and d-riven pinions, a divided axle, a pini n fitted to each portion of the axle,- their teeth entering oneyof the concentric rows- ;apertures in the disk, a driving shaft, pinions spac d apart loosely may actuate the disk at difierent speed ratios. I V V g p 3. In a device of the character described, an inclosing case, a rotatable disk journaled in the case, having a plurality ofapertures arranged in concentric circles, a divided.

axle, a pinion fitted to eachportionof'the axle,- their teeth entering one of the con-V centric rows of aperturesin said disk, antifriction=rollei'sjournaled in the case adapted to traverse the rotatable disk to maintain the latter in operative relation": to the pinions, a driving shaft, pinions loosely mounted upon'the driving shaft, and having engagement with the apertures and means for alternately locking said last named pinions to the driving shaft, whereby the diskmay be actuated at different speed ratios,

LIn a device of'the character described,

an inclosing case, a rotatabledisk'journaled in the case, having a plurality ofapertures j arrangediin concentric circles, a divided axle, a pinion fitted to each'portion of the 'axle, their teeth entering one of the ,con-

centric rows of apertures in the "disk, a driving'shaft, a driven shaft actuated from the driving shaft, pinions looselymounte'd upon the driving shaft, and having engagement with the apertures, meansfor alternately locking. said pinions to the driving shaft, whereby the diskmay 'be'driven at different speeds, a pinion loosely ,mounted upon the driven shaft, its teeth entering one row of the apertures in. the disk, andmeans whereby aid last named pinion may be locked to the driven shaft torotat the disk in a'. reverse direction.

5 In a device of the character described,

aninclosing case, a rotatable disk'journaled 1n the case, havlnga plurality of concenalternately lock saidpinions'to the driving shaft and means for manuallyfoperating said clutch member.

6. Ina device of the character described,

tric rows of apertures, a divided axle, a

an 'inclosin'g case,'a: rotatable disk, having a plurality of holes arranged in concentric circles, a divided axle, a'pi'nion fitted to each" portion of the axle, adapted to be actuated driving shaft with the driven shaft, pinions l00sely carried by thefdriving rethrough said disk, a driving shaft, a'dri'ven shaft, means for operably connecting the spectively engaged With the circles of confor locking said last named pinion to the centrically arranged holes in the rotatable driven shaft. 10 disk for alternately operating the disk in a In testimony whereof I Sign this speciforward direction at different speeds, a fication in the presence of tWo Witnesses.

clutch for alternately locking said last PERRY J. GARRISON. named pinions to the driving shaft, a pinion Witnesses.

carried by the driven shaft for operating S. E. THOMAS,

the disk in a reverse direction, and a clutch JOHN OONSIDINE, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

